PURPOSE: To improve durability by winding plural fiber cords running in radial directions around a shaft fixed on a rotor, covering the fiber cords with an enclosure, and forming the enclosure in a transition range to the rotor to have a flange fixed to the rotor.

CONSTITUTION: A propeller blade 2 fixed to a rotor 3 of a prop fan engine comprises a blade core 4 having a cross section in a wedge form, and around the blade core 4, plural fibers cords 5, 6, 7 are circularly wound. The fiber cords 5, 7 on the outer side in an axial direction are wound around tension bolts 8, 9 fixed to a shaft 10, and the shaft 10 is removably installed by a lateral bolt 11 to the rotor 3. A center bundle of the fiber cords 6 is wound around the shaft 10. The fiber cords 5, 6, 7 are enclosed by an enclosure 12, the enclosure 12 covers the whole propeller blade 2, a transition range to the rotor 3 is formed to form a flange 13, and the flange 13 is fixed to the rotor 3 by a fixing means 14.